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Home , Potassium hydroxide

Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

Date of issue: 10/09/2004 Revision date: 02/06/2018 Supersedes: 02/06/2018 Version: 1.1

SECTION 1: Identification

1.1. Identification Product form : Substance Substance name : Potassium Hydroxide CAS-No. : 1310-58-3 Product code : LC19190 Formula : KOH Synonyms : caustic / caustic potash dry / caustic potash, dry solid, flake, bead or granular / caustic potash, solid / caustic potash,solid / hydrate of potash / hydrate of potassium / hydroxide of potash / hydroxide of potassium / (=potassium hydroxide) / potash / potash hydrate / potash lye / potassium hydrate / potassium hydroxide (K(OH)) / potassium hydroxide dry / potassium hydroxide pellets / potassium hydroxide, dry solid, flake, bead or granular / potassium hydroxide, electrolytical, solid / potassium hydroxide, solid / Potassium hydroxide, solid / potassium lye

1.2. Recommended use and restrictions on use Use of the substance/mixture : For laboratory and manufacturing use only. Recommended use : Laboratory chemicals Restrictions on use : Not for food, drug or household use

1.3. Supplier LabChem Inc Jackson's Pointe Commerce Park Building 1000, 1010 Jackson's Pointe Court Zelienople, PA 16063 - USA T 412-826-5230 - F 724-473-0647 [email protected] - www.labchem.com

1.4. Emergency telephone number Emergency number : CHEMTREC: 1-800-424-9300 or 011-703-527-3887

SECTION 2: Hazard(s) identification

2.1. Classification of the substance or mixture GHS-US classification Acute toxicity (oral) H302 Harmful if swallowed Category 4 Skin /irritation H314 Causes severe skin burns and eye damage Category 1A Hazardous to the aquatic H402 Harmful to aquatic life environment - Acute Hazard Category 3

Full text of H statements : see section 16

2.2. GHS Label elements, including precautionary statements GHS-US labeling Hazard pictograms (GHS-US) :

GHS05 GHS07 Signal word (GHS-US) : Danger Hazard statements (GHS-US) : H302 - Harmful if swallowed H314 - Causes severe skin burns and eye damage H402 - Harmful to aquatic life Precautionary statements (GHS-US) : P260 - Do not breathe dust. P264 - Wash exposed skin thoroughly after handling. P270 - Do not eat, drink or smoke when using this product. P273 - Avoid release to the environment. P280 - Wear protective gloves, protective clothing, eye protection, face protection. P301+P330+P331 - IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

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Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

P303+P361+P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 - If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P310 - Immediately call a poison center or doctor/physician. P363 - Wash contaminated clothing before reuse. P405 - Store locked up. P501 - Dispose of contents/container to comply with local, state and federal regulations If inhaled: Remove person to fresh air and keep comfortable for breathing

2.3. Other hazards which do not result in classification Other hazards not contributing to the : None under normal conditions. classification 2.4. Unknown acute toxicity (GHS US) Not applicable SECTION 3: Composition/Information on ingredients

3.1. Substances Substance type : Mono-constituent

Name Product identifier % GHS -US classification Potassium Hydroxide (CAS-No.) 1310-58-3 100 Acute Tox. 4 (Oral), H302 (Main constituent) Skin Corr. 1A, H314 Aquatic Acute 3, H402

Full text of hazard classes and H-statements : see section 16

3.2. Mixtures Not applicable SECTION 4: First-aid measures

4.1. Description of first aid measures First-aid measures general : Check the vital functions. Unconscious: maintain adequate airway and respiration. Respiratory arrest: artificial respiration or oxygen. Cardiac arrest: perform resuscitation. Victim conscious with labored breathing: half -seated. Victim in shock: on his back with legs slightly raised. Vomiting: prevent asphyxia/aspiration pneumonia. Prevent cooling by covering the victim (no warming up). Keep watching the victim. Give psychological aid. Keep th e victim calm, avoid physical strain. Depending on the victim's condition: doctor/hospital. First-aid measures after inhalation : Remove the victim into fresh air. Doctor: administration of corticoid spray. Respiratory problems: consult a doctor/medical service. First-aid measures after skin contact : Wash immediately with lots of water (15 minutes)/shower. Do not apply (chemical) neutralizing agents. Remove clothing while washing. Do not remove clothing if it sticks to the skin. Cover wounds with sterile bandage. Consult a doctor/medical service. If burned surface > 10%: take victim to hospital. First-aid measures after eye contact : Rinse immediately with plenty of water for 15 minutes. Cover eyes aseptically. Do not apply neutralizing agents. Take victim to an ophthalmologist. First-aid measures after ingestion : Rinse mouth with water. Immediately after ingestion: give lots of water to drink. Do not induce vomiting. Do not give activated charcoal. Immediately consult a doctor/medical service. Call Poison Information Centre (www.big.be/antigif.htm). Ingestion of large quantities: immediately to hospital. Take the container/vomit to the doctor/hospital. Do not give chemical antidote.

4.2. Most important symptoms and effects (acute and delayed) Symptoms/effects after inhalation : AFTER INHALATION OF DUST: Dry/sore throat. Corrosion of the upper respiratory tract. Respiratory difficulties. FOLLOWING SYMPTOMS MAY APPEAR LATER: Possible oedema of the upper respiratory tract. Possible inflammation of the respiratory tract. Possible laryngeal spasm/oedema. Risk of pneumonia. Symptoms/effects after skin contact : Caustic burns/corrosion of the skin. Slow-healing wounds. Symptoms/effects after eye contact : Corrosion of the eye tissue. Permanent eye damage. Blindness. Symptoms/effects after ingestion : Abdominal pain. Difficulty in swallowing. Possible esophageal perforation. Irritation of the oral mucous membranes. Burns to the gastric/intestinal mucosa. Blood in vomit. AFTER ABSORPTION OF LARGE QUANTITIES: C hange in the blood composition. Disturbances of heart rate. FOLLOWING SYMPTOMS MAY APPEAR LATER: Bleeding of the gastrointestinal tract. Low arterial pressure. Blood in stool. Shock. Chronic symptoms : No effects known.

4.3. Immediate medical attention and special treatment, if necessary No additional information available

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Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

SECTION 5: Fire-fighting measures

5.1. Suitable (and unsuitable) extinguishing media Suitable extinguishing media : EXTINGUISHING MEDIA FOR SURROUNDING FIRES: Adapt extinguishing media to the environment. Unsuitable extinguishing media : No unsuitable extinguishing media known.

5.2. Specific hazards arising from the chemical Fire hazard : DIRECT FIRE HAZARD. Non combustible. INDIRECT FIRE HAZARD. Reactions involving a fire hazard: see "Reactivity Hazard". Explosion hazard : INDIRECT EXPLOSION HAZARD. Reactions with explosion hazards: see "Reactivity Hazard". Reactivity : Violent exothermic reaction with water (moisture). Reacts on exposure to water (moisture) with combustible materials: risk of spontaneous ignition. Reacts on exposure to water (moisture) with (some) metals: release of highly flammable gases/vapours (). Absorbs the atmospheric CO2. Violent to explosive reaction with many compounds e.g.: with organic material, with (some) halogens and with (some) : heat release resulting in increased fire or explosion risk.

5.3. Special protective equipment and precautions for fire-fighters Firefighting instructions : Cool tanks/drums with water spray/remove them into safety. Take account of toxic fire-fighting water. Use water moderately and if possible collect or contain it. Protection during firefighting : Heat/fire exposure: compressed air/oxygen apparatus.

SECTION 6: Accidental release measures

6.1. Personal precautions, protective equipment and emergency procedures 6.1.1. For non-emergency personnel Protective equipment : Gloves. Face-shield. Corrosion-proof suit. Dust cloud production: compressed air/oxygen apparatus. See "Material-Handling" to select protective clothing. Emergency procedures : Mark the danger area. Avoid ingress of water in the containers. Prevent dust cloud formation. Wash contaminated clothes. In case of hazardous reactions: keep upwind. In case of reactivity hazard: consider evacuation. Measures in case of dust release : In case of dust production: keep upwind. Dust production: have neighbourhood close doors and windows.

6.1.2. For emergency responders Protective equipment : Equip cleanup crew with proper protection. Emergency procedures : Ventilate area. Stop release.

6.2. Environmental precautions Prevent soil and water pollution. Prevent spreading in sewers.

6.3. Methods and material for containment and cleaning up For containment : Contain released substance, pump into suitable containers. Consult "Material-handling" to select material of containers. Plug the leak, cut off the supply. Dam up the solid spill. Knock down/dilute dust cloud with water spray. Take account of toxic/corrosive precipitation water. Hazardous reaction: measure explosive gas-air mixture. Reaction: dilute combustible gas/vapour with water curtain. Methods for cleaning up : Collect the spill only if it is in a dry state. Wetted substance: cover with dry sand/earth. Scoop solid spill into closing containers. See "Material-handling" for suitable container materials. Carefully collect the spill/leftovers. Take collected spill to manufacturer/competent authority. Small quantities of liquid spill: neutralize with dilute solution. Wash away neutralized product with plentiful water. Clean contaminated surfaces with an excess of water. Wash clothing and equipment after handling.

6.4. Reference to other sections No additional information available SECTION 7: Handling and storage

7.1. Precautions for safe handling Precautions for safe handling : Comply with the legal requirements. Remove contaminated clothing immediately. Clean contaminated clothing. Use corrosionproof equipment. Thoroughly clean/dry the installation before use. Do not discharge the waste into the drain. Avoid raising dust. Avoid contact of substance with water. Observe very strict hygiene - avoid contact. Keep container tightly closed. Measure the concentration in the air regularly. Carry operations in the open/under local exhaust/ventilation or with respiratory protection.

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Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

Hygiene measures : Wash hands and other exposed areas with mild and water before eating, drinking or smoking and when leaving work. Wash contaminated clothing before reuse. Do not eat, drink or smoke when using this product.

7.2. Conditions for safe storage, including any incompatibilities Storage temperature : 20 °C Heat-ignition : KEEP SUBSTANCE AWAY FROM: heat sources. Prohibitions on mixed storage : KEEP SUBSTANCE AWAY FROM: combustible materials. oxidizing agents. strong acids. highly flammable materials. metals. organic materials. water/moisture. Storage area : Store in a dry area. Keep container in a well-ventilated place. Keep locked up. Provide for a tub to collect spills. Unauthorized persons are not admitted. Meet the legal requirements. Special rules on packaging : SPECIAL REQUIREMENTS: hermetical. watertight. corrosion-proof. dry. clean. correctly labelled. meet the legal requirements. Secure fragile packagings in solid containers. Packaging materials : SUITABLE MATERIAL: steel. stainless steel. carbon steel. iron. . cardboard. synthetic material. glass. stoneware/porcelain. MATERIAL TO AVOID: lead. . copper. tin. . bronze. polyethylene.

SECTION 8: Exposure controls/personal protection

8.1. Control parameters Potassium Hydroxide (1310 -58 -3) ACGIH ACGIH Ceiling (mg/m³) 2 mg/m³ (Potassium hydroxide; USA; Momentary value; TLV - Adopted Value) NIOSH NIOSH REL (ceiling) (ppm) 2 ppm

8.2. Appropriate engineering controls Appropriate engineering controls : Emergency eye wash fountains should be available in the immediate vicinity of any potential exposure. Provide adequate general and local exhaust ventilation.

8.3. Individual protection measures/Personal protective equipment Personal protective equipment: Corrosionproof clothing. Protective goggles. Dust formation: dust mask. Gloves.

Materials for protective clothing: GIVE EXCELLENT RESISTANCE: butyl rubber. natural rubber. neoprene. rubber. PVC. viton. GIVE LESS RESISTANCE: No data available. GIVE POOR RESISTANCE: leather. natural fibres. PVA

Hand protection: Gloves

Eye protection: Face shield

Skin and body protection: Corrosion-proof clothing. In case of dust production: head/neck protection

Respiratory protection: Dust production: dust mask with filter type P3. Self-contained breathing apparatus if conc. in air > 1 vol %

SECTION 9: Physical and chemical properties

9.1. Information on basic physical and chemical properties Physical state : Solid

Appearance : Solid in various shapes. Powder. 02/06/2018 EN (English US) 4/8

Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

Color : White to light yellow

Odor : Odorless

Odor threshold : No data available

pH : 13.5 (0.60 %)

pH solution : 0.6 % : 360 °C

Freezing point : No data available

Boiling point : No data available

Flash point : Not applicable

Relative evaporation rate (butyl acetate=1) : No data available

Flammability (solid, gas) : No data available

Vapor pressure : < 0.1 hPa (20 °C)

Relative vapor at 20 °C : No data available

Relative density : 2 (20 °C)

Specific gravity / density : 2044 kg/m³ (20 °C) Molecular mass : 56.11 g/mol : Exothermically soluble in water. Soluble in . Soluble in . Water: 112 g/100ml

Log Pow : No data available

Auto-ignition temperature : Not applicable

Decomposition temperature : No data available

Viscosity, kinematic : No data available

Viscosity, dynamic : No data available

Explosion limits : No data available

Explosive properties : Not applicable.

Oxidizing properties : None.

9.2. Other information Minimum ignition energy : Not applicable SADT : Not applicable VOC content : 0 % Other properties : Translucent. Hygroscopic. Substance has basic reaction.

SECTION 10: Stability and reactivity

10.1. Reactivity Violent exothermic reaction with water (moisture). Reacts on exposure to water (moisture) with combustible materials: risk of spontaneous ignition. Reacts on exposure to water (moisture) with (some) metals: release of highly flammable gases/vapours (hydrogen). Absorbs the atmospheric CO2. Violent to explosive reaction with many compounds e.g.: with organic material, with (some) halogens and with (some) acids: heat release resulting in increased fire or explosion risk.

10.2. Chemical stability Hygroscopic. Absorbs atmospheric CO2.

10.3. Possibility of hazardous reactions Reacts violently with water. Reacts violently with acids.

10.4. Conditions to avoid Moisture. High temperature. Incompatible materials.

10.5. Incompatible materials metals. Halogens. Acid anhydrides. Nitrates. Organic compounds. Water.

10.6. Hazardous decomposition products Potassium . SECTION 11: Toxicological information

11.1. Information on toxicological effects

Likely routes of exposure : Skin and eye contact 02/06/2018 EN (English US) 5/8

Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

Acute toxicity : Oral: Harmful if swallowed.

Potassium Hydroxide (1310 -58 -3) LD50 oral rat 333 mg/kg (Rat; Equivalent or similar to OECD 425; Experimental value) ATE US (oral) 333 mg/kg body weight

Skin corrosion/irritation : Causes severe skin burns and eye damage. pH: 13.5 (0.60 %) Serious eye damage/irritation : Not classified pH: 13.5 (0.60 %) Respiratory or skin sensitization : Not classified Germ cell mutagenicity : Not classified Carcinogenicity : Not classified

Reproductive toxicity : Not classified Specific target organ toxicity – single exposure : Not classified

Specific target organ toxicity – repeated : Not classified exposure

Aspiration hazard : Not classified

Symptoms/effects after inhalation : AFTER INHALATION O F DUST: Dry/sore throat. Corrosion of the upper respiratory tract. Respiratory difficulties. FOLLOWING SYMPTOMS MAY APPEAR LATER: Possible oedema of the upper respiratory tract. Possible inflammation of the respiratory tract. Possible laryngeal spasm/oedema. Risk of pneumonia. Symptoms/effects after skin contact : Caustic burns/corrosion of the skin. Slow-healing wounds. Symptoms/effects after eye contact : Corrosion of the eye tissue. Permanent eye damage. Blindness. Symptoms/effects after ingestion : Abdominal pain. Difficulty in swallowing. Possible esophageal perforation. Irritation of the oral mucous membranes. Burns to the gastric/intestinal mucosa. Blood in vomit. AFTER ABSORPTION OF LARGE QUANTITIES: Change in the blood composition. Disturbances o f heart rate. FOLLOWING SYMPTOMS MAY APPEAR LATER: Bleeding of the gastrointestinal tract. Low arterial pressure. Blood in stool. Shock. Chronic symptoms : No effects known.

SECTION 12: Ecological information

12.1. Toxicity Ecology - air : Not classified as dangerous for the layer (Regulation (EC) No 1005/2009). Ecology - water : Ground water pollutant. Harmful to fishes. Highly toxic to plankton. pH shift.

Potassium Hydroxide (1310 -58 -3) LC50 fish 2 80 mg/l (LC50; 96 h; Gambusia affinis; Static system; Fresh water)

12.2. Persistence and degradability Potassium Hydroxide (1310 -58 -3) Persistence and degradability Biodegradability: not applicable. Biochemical oxygen demand (BOD) Not applicable

Chemical oxygen demand (COD) Not applicable

ThOD Not applicable

12.3. Bioaccumulative potential Potassium Hydroxide (1310 -58 -3) Bioaccumulative potential Bioaccumulation: not applicable.

12.4. Mobility in soil No additional information available

12.5. Other adverse effects No additional information available

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Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

SECTION 13: Disposal considerations

13.1. Disposal methods Waste disposal recommendations : Remove waste in accordance with local and/or national regulations. Hazardous waste shall not be mixed together with other waste. Different types of hazardous waste shall not be mixed together if this may entail a risk of pollution or create problems for the further management of the waste. Hazardous waste shall be managed responsibly. All entities that store, transport or handle hazardous waste shall take the necessary measures to prevent risks of pollution or damage to people or animals. Should not be landfilled with household waste. Recycle/reuse. Immobilize the toxic or harmful components. Precipitate/make insoluble. Remove to an authorized dump (Class I). Treat using the best available techniques before discharge into drains or the aquatic environment. Additional information : LWCA (the Netherlands): KGA category 05. Hazardous waste according to Directive 2008/98/EC.

SECTION 14: Transport information Department of Transportation (DOT) In accordance with DOT Transport document description : UN1813 Potassium hydroxide, solid, 8, II

UN-No.(DOT) : UN1813 Proper Shipping Name (DOT) : Potassium hydroxide, solid Transport hazard class(es) (DOT) : 8 - Class 8 - Corrosive material 49 CFR 173.136 Packing group (DOT) : II - Medium Danger Hazard labels (DOT) : 8 - Corrosive

DOT Packaging Non Bulk (49 CFR 173.xxx) : 212 DOT Packaging Bulk (49 CFR 173.xxx) : 240 DOT Special Provisions (49 CFR 172.102) : IB8 - Authorized IBCs: Metal (11A, 11B, 11N, 21A, 21B, 21N, 31A, 31B and 31N); Rigid plastics (11H1, 11H2, 21H1, 21H2, 31H1 and 31H2); Composite (11HZ1, 11HZ2, 21HZ1, 21HZ2, 31HZ1 and 31HZ2); Fiberboard (11G); Wooden (11C, 11D and 11F); Flexible (13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3, 13L4, 13M1 or 13M2). IP2 - When IBCs other than metal or rigid plastics IBCs are used, they must be offered for transportation in a closed freight container or a closed transport vehicle. IP4 - Flexible, fiberboard or wooden IBCs must be sift-proof and water-resistant or be fitted with a sift-proof and water-resistant liner. T3 - 2.65 178.274(d)(2) Normal...... 178.275(d)(2) TP33 - The portable tank instruction assigned for this substance applies for granular and powdered solids and for solids which are filled and discharged at temperatures above their melting point which are cooled and transported as a solid mass. Solid substances transported or offered for transport above their melting point are authorized for transportation in portable tanks conforming to the provisions of portable tank instruction T4 for solid substances of packing group III or T7 for solid substances of packing group II, unless a tank with more stringent requirements for minimum shell thickness, maximum allowable working pressure, pressure-relief devices or bottom outlets are assigned in which case the more stringent tank instruction and special provisions shall apply. Filling limits must be in accordance with portable tank special provision TP3. Solids meeting the definition of an elevated temperature material must be transported in accordance with the applicable requirements of this subchapter. DOT Packaging Exceptions (49 CFR 173.xxx) : 154 DOT Quantity Limitations Passenger aircraft/rail : 15 kg (49 CFR 173.27) DOT Quantity Limitations Cargo aircraft only (49 : 50 kg CFR 175.75) DOT Vessel Stowage Location : A - The material may be stowed ‘‘on deck’’ or ‘‘under deck’’ on a cargo vessel and on a passenger vessel. DOT Vessel Stowage Other : 52 - Stow ‘‘separated from’’ acids Other information : No supplementary information available.

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Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

SECTION 15: Regulatory information

15.1. US Federal regulations Potassium Hydroxide (1310 -58 -3) Listed on the United States TSCA (Toxic Substances Control Act) inventory Not subject to reporting requirements of the United States SARA Section 313 RQ (Reportable quantity, section 304 of EPA's List of Lists) 1000 lb SARA Section 311/312 Hazard Classes Immediate (acute) health hazard

All components of this product are listed, or excluded from listing, on the United States Environmental Protection Agency Toxic Substances Control Act (TSCA) inventory

15.2. International regulations CANADA No additional information available

EU-Regulations No additional information available

National regulations No additional information available

15.3. US State regulations

California Proposition 65 - This product does not contain any substances known to the state of California to cause cancer, developmental and/or reproductive harm

SECTION 16: Other information

Revision date : 02/06/2018

Full text of H-phrases: see section 16: --- H302 Harmful if swallowed ------H314 Causes severe skin burns and eye damage ------H402 Harmful to aquatic life ---

NFPA health hazard : 3 - Materials that, under emergency conditions, can cause serious or permanent injury. NFPA fire hazard : 0 - Materials that will not burn under typical dire conditions, including intrinsically noncombustible materials such as concrete, stone, and sand. NFPA reactivity : 1 - Materials that in themselves are normally stable but can become unstable at elevated temperatures and pressures.

NFPA specific hazard : W - Materials that react violently or explosively with water.

Hazard Rating Health : 3 Serious Hazard - Major injury likely unless prompt action is taken and medical treatment is given Flammability : 0 Minimal Hazard - Materials that will not burn Physical : 1 Slight Hazard - Materials that are normally stable but can become unstable (self-react) at high temperatures and pressures. Materials may react non-violently with water or undergo hazardous polymerization in the absence of inhibitors. Personal protection : F F - Safety glasses, Gloves, Synthetic apron, Dust respirator

SDS US LabChem

Information in this SDS is from available published sources and is believed to be accurate. No warranty, express or implied, is made and LabChem Inc assumes no liability resulting from the use of this SDS. The user must determine suitability of this information for his application.

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